<template>
  <header id='header4bal'> 
    <slot name='logo'></slot>
    <slot name='search'></slot>
    <section class="head_goback" v-if="goBack" @click="$router.go(-1)">
      <svg width="100%" height="100%" xmlns="http://www.w3.org/2000/svg" version="1.1">
        <polyline points="12,18 4,9 12,0" style="fill:none;stroke:rgb(255,255,255);stroke-width:2"/>
      </svg>
    </section>
    <router-link :to="routerLink" class="head_login">
      <span class="login_span">添加</span>
    </router-link>
    <section class="title_head ellipsis" v-if="headTitle">
      <span class="title_text">{{headTitle}}</span>
    </section>
    <slot name="edit"></slot>
    <slot name="msite-title"></slot>
    <slot name="changecity"></slot>
    <slot name="changeLogin"></slot>
  </header>
</template>

<script>
  import {mapGetters} from 'vuex'
  export default {
    data(){
      return {
        routerLink: null
      }
    },
    props: ['signinUp', 'headTitle', 'goBack', 'addUrl', 'addUrlParam'],
    computed: {
      ...mapGetters([
          'user'
      ])
    },
    beforeMount() {
      this.routerLink = {path: this.addUrl, query: this.addUrlParam};
      // console.log("addUrl:", this.addUrl);
      // console.log("addUrlParam:", this.addUrlParam);
      // console.log("routerLink:", this.routerLink);
    }
  }
</script>

<style lang="scss" scoped>
  @import 'src/style/mixin';

  #header4bal {
    background-color: $blue;
    position: fixed;
    z-index: 100;
    left: 0;
    top: 0;
    @include wh(100%, 1.95rem);
  }
  .head_goback{
    left: 0.4rem;
    @include wh(0.6rem, 1rem);
    line-height: 2.2rem;
    margin-left: .4rem;
  }
  .head_login{
    right: 0.55rem;
    @include sc(0.65rem, #fff);
    @include ct;
    .login_span{
      color: #fff;
    }
    .user_avatar{
      fill: #fff;
      @include wh(.8rem, .8rem);
    }
  }
  .title_head{
    @include center;
    width: 50%;
    color: #fff;
    text-align: center;
    .title_text{
      @include sc(0.8rem, #fff);
      text-align: center;
      font-weight: bold;
    }
  }
</style>